pic: 3 CIM WCD Crazy Geabox

[Chris is me]

Originally Posted by Bryce2471

Team 254 uses dog shifting in their gearboxes. Which means that beyond just double loading the pinions, they are cantilevered at the end of the CIM shaft. In this design, and the others that I have posted recently, the pinions are very close to the base of the shaft. This means that the CIM shafts will take a fraction of the torque seen in 254's gearboxes.

What does dog shifting have to do with pinion loading at all? Almost all gearboxes have cantilevered motor pinions, including this one. The only time I've seen a fully supported first stage pinion is when a team pressed 3/8 hex sleeves onto their CIMs.

While the distance from the motor and thus bushings matters, it's still going to be a concern here. It might work, but be careful.

I do like the low profile design a lot, but cleanly integrating three motors into a gearbox without excessive extra weight is indeed quite the packaging challenge - you'll always compromise *something* in the design. So you'll probably always get some nitpick on CD